Electronic Control System Signature, ISX and QSX15 Engines – FAULT CODE 527 (INDUSTRIAL)

Switched Output A Error


Fault Code: 527
PID: P40
PID: S154
SPN: 702
FMI: 3/3
LAMP: Yellow

Less than (+) 17.0 VDC detected at the switched output A signal pin of the 31-pin OEM connector.

No action taken by the electronic control module (ECM).

Switched Output A Circuit

Circuit Description

The solenoid driver will control engine and vehicle functions by closing or opening a switched solenoid output, based on 11 selected engine parameters. The solenoid output will control functions such as a fan clutch, intake grid heater, air cleaner restriction indicator, or an oil filter differential pressure indicator.

Component Location

The solenoid driver is an OEM device, and the location of the solenoid is dependent upon the OEM.

Refer to Troubleshooting Fault Code t05-527.

Last Modified:  26-Oct-2010